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Old 04-24-2011, 10:19 AM
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What's wrong here, heater control

2004 Ford Explorer temperature control would not turn off the heat, just a loud constant clicking sound from the blend door actuator. Common problem I have found and the actuator was in stock at Advance so I removed the old one and simply installed the new one and plugged it in (not so simple actually as that thing is a MAJOR PITA to change! ). Ran the engine until warm, turned off the heat and nothing happened, still blowing hot air. Tore into that thing a second time and this time I let the actuator dangle on the harness plug and tried the control-nothing happened it just didn't do anything. I plugged in the old one and sure enough the motor runs just fine but the plastic gears are stripped inside, on the new one the motor will not even run. OK the new one is bad I was thinking, took it back and exchanged it (these are Dorman products made in Korea) but same problem, it just will not do anything. Took it back and they had to order another one but when I plugged it in the same thing happens, nothing! The old one will run just fine but the new ones will not, am I missing something here? Getting three bad ones is not very likely and I have double checked to make sure it is the right part number, the plug socket is the same (same pins, etc) but the location on the actuator is different but everything else is identical. I even checked to make sure it was not a mid-year change that Ford is so well known for but several years newer and older take the same part number. Am I supposed to do something to this darn thing before installing it? There is nothing in the way of installation instructions in the box, just the actuator and nothing else.

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Old 04-24-2011, 10:34 AM
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Go to the dealer and get a new one, game over.
The Advanced, Autozone, Orileys parts for the most part are crap and you will spend more time and money chasing bad or out of spec parts than you will save.
Anything that says Dorman or A1 Cardone on it should be thrown in the trash. I cant believe these stores even still sell this crap. The return rates have to be incredible. We dont waste our time at all with aftermarket electrical parts, we buy only OEM and a lot of times they are cheaper with a garage discount than the aftermarket crap is.
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Old 04-24-2011, 11:30 AM
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The return rates have to be incredible..

That will certainly be true if it turns out that I did indeed get three bad ones!
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Old 04-24-2011, 12:05 PM
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i would check all the grounds, i mean all.
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Old 04-24-2011, 12:36 PM
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Originally Posted by oldred
That will certainly be true if it turns out that I did indeed get three bad ones!
If the original works but the gears are stripped and the new ones dont even turn, that should tell you something
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Old 04-24-2011, 01:18 PM
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Originally Posted by ductape&monkeywrench
i would check all the grounds, i mean all.


The old one works just fine electrically but the gears have teeth missing so it will not move the heat blend door. The new one(s) don't do anything, they don't even try to move with no load at all on them.
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